Home / 9,139.84-12,601.92-7,250.56

Finding the Fourth Proportional to 9,139.84, 12,601.92 and 7,250.56

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Solution

The fourth proportional to 9,139.84, 12,601.92 and 7,250.56 is: 9,997.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139.84 : 12,601.92 = 7,250.56 : x
  2. Step 2: Convert to fraction form
    9,139.84/12,601.92 = 7,250.56/x
  3. Step 3: Cross multiply
    9,139.84x = 12,601.92 × 7,250.56
  4. Step 4: Simplify right side
    9,139.84x = 91,370,977.08
  5. Step 5: Solve for x
    x = 91,370,977.08/9,139.84
  6. Step 6: Final answer
    x = 9,997.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.